.png?width=140&quality=70){kind=logo}
Hardwood Decking in Spokane
How Ipe, Cumaru, Tigerwood, Garapa, Massaranduba & Red Balau perform in Spokane's rain & moisture climate.
Summer High
76°F
Winter Low
34°F
Annual Rainfall
37"
Humidity
High (west) / Low (east)
UV Index
Low-Moderate
Primary Challenge
Constant Rain (west) + Moss/Mold + Mild Year-Round
Spokane Climate & Decking Challenges
Spokane's Eastern Washington climate is dramatically different from Seattle — dry, hot summers and cold winters with snow. Follow Mountain West-style protocols with extended acclimation for the dry air.
Species Rankings for Spokane
BEST OVERALL
Ipe Decking in Spokane
Ipe is the premium PNW choice — its extreme density prevents moss and algae from penetrating the surface. The tight interlocking grain provides natural slip resistance in the rain. Ipe's natural oils repel moisture without any chemical treatment, and its Class A fire rating doesn't hurt in dry-season wildfire areas east of the Cascades.
BEST VALUE
Cumaru Decking in Spokane
Cumaru is the PNW's best-value option — 3,330 Janka handles constant rain at a better price than Ipe. Its natural oils repel moisture, and its density prevents moss penetration. At 30-40% less than Ipe, Cumaru makes premium hardwood accessible for PNW budgets.
TROPICAL FIT
Red Balau Decking in Spokane
Red Balau's SE Asian tropical origin means it evolved in rain-heavy conditions similar to the PNW. Its 2,700 Janka and natural moisture resistance make it a strong PNW performer at a competitive mid-range price. Warm red-brown tones complement PNW Craftsman and modern homes.
HEAVY DUTY
Massaranduba Decking in Spokane
Massaranduba's extreme density (67 lbs/ft³) handles PNW moisture with ease. Slight overkill for PNW's mild temperatures — the density that makes it a freeze-thaw champion in the Northeast is a luxury in the mild PNW. But if you want maximum longevity, it delivers.
BUDGET PICK
Garapa Decking in Spokane
The PNW's mild temperatures are actually Garapa's sweet spot — no extreme heat, cold, or UV to stress this lighter species. Garapa handles rain well and is the most affordable premium hardwood. This is one of the best climates for Garapa to truly shine.
Installation Adjustments for Spokane
Acclimation
10-14 days. PNW's high humidity means boards equilibrate relatively quickly. Cover boards to keep rain off during acclimation.
Board Spacing
3/16" gaps. PNW's consistent humidity means less seasonal expansion/contraction than drier climates.
Fasteners
316 stainless for coastal OR/WA (within 5 miles of ocean); 304 acceptable inland
Best Installation Timing
Best: June-September (PNW dry season). Spring and fall are possible but plan for rain delays.
Special Considerations
Ensure excellent ventilation under the deck — PNW moisture means mold can develop on the underside without airflow. Slope deck slightly for drainage. End-seal all cuts.
Spokane Maintenance Calendar
Spring
Full cleaning — moss and algae removal is the PNW's primary maintenance task. Power wash or scrub with deck cleaner. Oil if maintaining color (optional in low-UV PNW).
Summer
Enjoy the dry season. Spot-clean as needed. Best time for any repairs.
Fall
Second moss/algae cleaning before wet season. Clear leaves and debris to prevent moisture traps.
Winter
Let the rain do its thing — hardwood handles it. Check drainage. Remove any standing debris.
Oiling Frequency for Spokane
Oiling is truly optional in PNW — low UV means the wood silvers very slowly. 1x/year if you want to maintain color. Moss/algae cleaning 2x/year is more important than oiling.
Hardwood vs. Alternatives in Spokane
| Feature | Ipe Hardwood | Cedar | Trex Composite | Pressure-Treated |
|---|---|---|---|---|
| Lifespan in PNW | 75+ years | 8-12 years | 15-20 years | 10-15 years |
| Rain/Moisture Performance | Excellent — no absorption | Absorbs, rots | Molds, gets slippery | Absorbs, warps, rots |
| Moss/Algae Resistance | Surface only — easy clean | Penetrates deeply | Embeds in texture | Penetrates deeply |
| Slip Resistance (wet) | Excellent — natural grip | Moderate | Poor — very slippery | Moderate |
| Maintenance in PNW | 1-2 cleanings/year | Annual staining + cleaning | 2-3 cleanings + mold treatment | Annual staining + cleaning |
| 25-Year Total Cost | Lowest | Higher (2 replacements) | Similar | Higher (2+ replacements) |
Shop Spokane Decking by Species
Find the right hardwood decking for Spokane's rain & moisture climate — browse sizes, profiles, and live pricing.
Hardwood Decking in Spokane — FAQ
Pickup Locations in Spokane
Save on shipping — pick up your hardwood lumber at a terminal near you, or we ship anywhere in Spokane.
Explore More
About Ipe Wood
Species information
About Cumaru Wood
Species information
About Tigerwood Wood
Species information
About Garapa Wood
Species information
About Massaranduba Wood
Species information
About Red Balau Wood
Species information
Hardwood Comparisons
Ipe vs composite, cedar & more
Ipe Deck Cost Guide
Installed cost per sq ft